Malik related to me that he heard that Umar ibn al-Khattab saw afemale slave belonging to Abdullah ibn Umar ibn al-Khattab. She wasdressed up in silks. He went to his daughter Hafsa and said, "Didn't Isee your brother's slave-girl dressed up in silks walking among thepeople and causing trouble?" Umar disapproved of that.
USC-MSA web (English) reference: Book 54, Hadith 44
Arabic reference: Book 54, Hadith 1810